only make tar/gz when files exist
only make tar/gz when files exist

wooey/Wooey,alexkolar/Wooey,hottwaj/Wooey,alexkolar/Wooey,waytai/Wooey,wooey/django-djangui,wooey/Wooey,hottwaj/Wooey,wooey/Wooey,wooey/Wooey,waytai/Wooey,wooey/django-djangui,alexkolar/Wooey,waytai/Wooey,hottwaj/Wooey